Marathon Introduces New Air Disc Brake Rotors
Marathon's DiscStar air disc brake rotors feature an optimized venting design and maximized heat sink to further enhance thermal resistance properties.

The new line of DiscStar air disc brake rotors from Marathon Brake Systems are designed for a variety of heavy-duty applications, including on-highway trucks and trailers, motorcoaches, transit buses, and school buses.
Photo courtesy Marathon Brake Systems
Marathon Brake Systems has developed a complete line of DiscStar air disc brake rotors for a variety of heavy-duty applications, including on-highway trucks and trailers, motorcoaches, transit buses, and school buses.
The DiscStar air disc brake rotors are manufactured to OE thickness specifications to resist warping and cracking issues caused by high temperature applications, according to a news release from the company. The rotors also feature an optimized venting design and maximized heat sink to further enhance thermal resistance properties.
Engineered to ECE R90 European standards, the DiscStar rotors are manufactured in an ISO-certified plant and are geometrically tested for design, metallurgical composition, hardness, and balance. The rotors also undergo a thermal integrity test at high loads. When used in combination with Marathon's DiscStar air disc pads, the rotors can reportedly provide smooth stopping and a longer service life to lower a fleet's maintenance costs.
More Maintenance

ASE Highlights School Bus Technician Certification Requirements
ASE is encouraging school bus maintenance professionals to maintain their certifications, highlighting seven specialized tests and five-year renewal requirements.
Read More →
International Adds E-Commerce Capabilities to Fleetrite.com
IC Bus customers can now browse, buy, and track shipments for more than 400,000 aftermarket parts online.
Read More →
The Most Expensive Thing You Do Before Selling a School Bus: Wait
When should you sell an aging school bus? Learn how maintenance, mileage, corrosion, specifications, and timing can affect resale value long before the auction.
Read More →
The Evolution of DEF Header Technology: What School Bus Operations Should Know at Replacement Time
See what school bus fleets should consider when replacing DEF headers to improve reliability, reduce repeat repairs, and control maintenance costs.
Read More →
The Essential Guide to School Bus Maintenance and Student Safety
Your district's buses carry students to school every day. This guide shows how predictive maintenance powered by fleet data helps keep buses reliable, drivers accountable and students safer from the first bell to the last stop.
Read More →
Kerry Brothers Grows Michigan School Bus Repair Network
The acquisition of Downriver Truck and Bus expands Kerry Brothers’ school bus maintenance footprint across southeast Michigan, adding repair capacity, diagnostic resources, and state inspection support.
Read More →
Noregon Introduces CAN Bus Diagnostic Tool, Expands JPRO Features
CAN Mentor and the latest JPRO update aim to simplify vehicle network diagnostics and improve repair efficiency for technicians of all experience levels.
Read More →Cummins on Smarter, Simpler Engine Innovation
Cummins discusses its first-ever gasoline engine for school buses, EPA 2027, and why bus fleets still want durable, simpler internal combustion options.
Read More →
Report: 72% of Diesel School Buses Now Use Advanced Low-Emission Engines
New data shows advanced low-emission diesel technology continues expanding across school bus fleets, even as electric bus adoption gains momentum.
Read More →
Vampire Tools' CAIMAN 7.5-Inch Multi-Purpose Screw Extractor Long-Nose Pliers with Crimper
Vampire Tools introduced the VAMPLIERS Caiman 7.5-inch multi-purpose pliers, combining screw extraction, cutting, crimping, and gripping functions into a single tool designed for fleet maintenance professionals.
Read More →
